24 September 2012 ECHARPE: a fiber-fed echelle spectrograph for the Pico dos Dias Observatory
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Abstract
At least during the last ten years, the Brazilian astronomical community has been asking for an echelle spectrograph for the 1.6 m telescope installed at Pico dos Dias Observatory (Brazópolis, MG, Brazil, OPD/MCTI/LNA). Among the scientific cases are topics related to the chemical evolution of the Galaxy, asteroseismology, chemical composition and chromospheric activities of solar type stars and the relations between solar analogues and terrestrial planets. During 2009 the project finally got started. The called ECHARPE spectrograph (Espectrógrafo ECHelle de Alta Resolução para o telescópio Perkin-Elmer) is being projected to offer a spectral resolution of R ~ 50000, in the range 390-900 nm and with a single exposition. It will be a bench spectrograph with two channels: blue and red, fed by two optical fibers (object, sky or calibration) with aperture of 1.5 or 2.0 arcseconds. The instrument will be placed in one of the telescope pillar ramification, in the originals installations of a Coudé spectrograph and in a specially created environment controlled room. In this work we will present the scientific motivations, the conceptual optical design, the expected performance of the spectrograph, and the status of its development. ECHARPE is expected to be delivered to the astronomical community in 2014, fully prepared and optimized for remote operations.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tania P. Dominici, Tania P. Dominici, Bruno Castilho, Bruno Castilho, Clemens D. Gneiding, Clemens D. Gneiding, Bernard A. Delabre, Bernard A. Delabre, Vanessa B. P. Macanhan, Vanessa B. P. Macanhan, Marcio V. de Arruda, Marcio V. de Arruda, Antonio C. de Oliveira, Antonio C. de Oliveira, Jorge Melendez, Jorge Melendez, Luiz P. R. Vaz, Luiz P. R. Vaz, Wagner J. B. Corradi, Wagner J. B. Corradi, Gabriel A. P. Franco, Gabriel A. P. Franco, Jose D. do Nascimento, Jose D. do Nascimento, Germano R. Quast, Germano R. Quast, Gustavo F. Porto de Mello, Gustavo F. Porto de Mello, } "ECHARPE: a fiber-fed echelle spectrograph for the Pico dos Dias Observatory", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 844636 (24 September 2012); doi: 10.1117/12.925674; https://doi.org/10.1117/12.925674
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